ATE18099T1 - MONITORING DEVICE FOR A MEASUREMENT AMPLIFIER LINE. - Google Patents

MONITORING DEVICE FOR A MEASUREMENT AMPLIFIER LINE.

Info

Publication number
ATE18099T1
ATE18099T1 AT80103585T AT80103585T ATE18099T1 AT E18099 T1 ATE18099 T1 AT E18099T1 AT 80103585 T AT80103585 T AT 80103585T AT 80103585 T AT80103585 T AT 80103585T AT E18099 T1 ATE18099 T1 AT E18099T1
Authority
AT
Austria
Prior art keywords
voltage
amplifier
comparison
amplifier line
line
Prior art date
Application number
AT80103585T
Other languages
German (de)
Inventor
Dieter Dipl-Ing Ruf
Original Assignee
Ritz Messwandler Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ritz Messwandler Kg filed Critical Ritz Messwandler Kg
Application granted granted Critical
Publication of ATE18099T1 publication Critical patent/ATE18099T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/32—Compensating for temperature change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/04—Voltage dividers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/60—Supervising unattended repeaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Amplifiers (AREA)

Abstract

1. Monitoring amplifier circuit for a voltage measuring device for multiphase high voltage installations, with a capacitive voltage divider (1) transforming a primary high voltage each into a lower input voltage, amplifier lines (2, 3, 4) for the input voltages provided by the voltage divider (1) and each comprising a preamplifier (7) and a final amplifier (9), devices for montoring the input and output voltages of each amplifier line (2, 3, 4), and devices for the remplacement thereof, characterized in that a) an identical replacement amplifier line (6) connectable instead of each amplifier line (2, 3, 4) is provided, b) the monitoring devices comprise an evaluation circuit (29) receiving the input voltage and the output voltage of each amplifier line (2, 3, 4), and a voltage comparison (13) embodies as a part of a microcomputer (23), c) voltage comparison circuit (13) is laid out, in excess of the comparison of the actual values of the input voltage and the output voltage, for comparison of the actual comparison value obtained thereby with a desired value and for output of a logical signal on deviation of the actual comparison value from the desired value, and d) a switching device (17) for connecting the replacement amplifier line (6) instead of the failed amplifier line (2, 3, 4), actuated in response to the logical signalm of the voltage comparison circuit (13) is coordinated to the microcomputer (23) detecting the fautly amplifier line (2, 3, 4).
AT80103585T 1980-06-25 1980-06-25 MONITORING DEVICE FOR A MEASUREMENT AMPLIFIER LINE. ATE18099T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80103585A EP0042878B1 (en) 1980-06-25 1980-06-25 Device for monitoring an amplifier stage

Publications (1)

Publication Number Publication Date
ATE18099T1 true ATE18099T1 (en) 1986-03-15

Family

ID=8186705

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80103585T ATE18099T1 (en) 1980-06-25 1980-06-25 MONITORING DEVICE FOR A MEASUREMENT AMPLIFIER LINE.

Country Status (2)

Country Link
EP (1) EP0042878B1 (en)
AT (1) ATE18099T1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418470A (en) * 1993-10-22 1995-05-23 Tektronix, Inc. Analog multi-channel probe system
DE10307690A1 (en) 2003-02-21 2004-05-27 Infineon Technologies Ag Electrical tolerance analysis circuit for tolerance analysis of digital and digitized measurement values comprises a testing arrangement for testing at least one predefined tolerance criterion and output unit for result output
CN106291034B (en) * 2015-12-26 2019-03-19 北京东方计量测试研究所 It can self-calibrating resistance divider
CN110806532B (en) * 2019-11-25 2021-01-08 昆明理工大学 Pre-amplifier detection system of EH4

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971557C (en) * 1951-12-11 1959-02-19 Licentia Gmbh Device for the building-independent measurement of high AC voltages by means of capacitive voltage divider and tube amplifier
US3555415A (en) * 1969-01-27 1971-01-12 Signetics Corp Amplifier testing apparatus having a comparator for comparing the amplifier output signal with a pair of reference signals
DE2049259B1 (en) * 1970-10-07 1972-03-23 Fernseh Gmbh System for the automatic testing of video studio equipment

Also Published As

Publication number Publication date
EP0042878B1 (en) 1986-02-19
EP0042878A1 (en) 1982-01-06

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Legal Events

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